/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/bitvector/s3_srvr_3a.BV.c.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 15:01:31,021 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 15:01:31,024 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 15:01:31,058 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 15:01:31,058 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 15:01:31,060 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 15:01:31,061 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 15:01:31,064 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 15:01:31,066 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 15:01:31,067 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 15:01:31,068 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 15:01:31,069 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 15:01:31,069 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 15:01:31,071 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 15:01:31,072 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 15:01:31,073 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 15:01:31,074 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 15:01:31,075 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 15:01:31,077 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 15:01:31,079 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 15:01:31,081 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 15:01:31,082 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 15:01:31,084 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 15:01:31,084 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 15:01:31,088 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 15:01:31,088 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 15:01:31,088 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 15:01:31,089 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 15:01:31,090 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 15:01:31,091 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 15:01:31,091 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 15:01:31,092 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 15:01:31,093 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 15:01:31,093 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 15:01:31,095 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 15:01:31,095 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 15:01:31,096 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 15:01:31,096 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 15:01:31,096 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 15:01:31,097 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 15:01:31,098 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 15:01:31,101 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-27 15:01:31,129 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 15:01:31,129 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 15:01:31,130 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 15:01:31,131 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 15:01:31,131 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 15:01:31,131 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 15:01:31,131 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 15:01:31,132 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 15:01:31,132 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 15:01:31,132 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 15:01:31,132 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 15:01:31,132 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 15:01:31,133 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 15:01:31,133 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 15:01:31,133 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 15:01:31,133 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 15:01:31,133 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 15:01:31,134 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 15:01:31,134 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 15:01:31,134 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 15:01:31,134 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 15:01:31,135 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 15:01:31,135 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 15:01:31,135 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 15:01:31,135 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 15:01:31,135 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 15:01:31,136 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 15:01:31,136 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 15:01:31,136 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 15:01:31,136 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 15:01:31,528 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 15:01:31,568 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 15:01:31,572 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 15:01:31,573 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 15:01:31,574 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 15:01:31,577 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/s3_srvr_3a.BV.c.cil.c [2020-10-27 15:01:31,652 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/587acbc90/c9e3289ff71c41cf9132cea96eef5829/FLAG30df508da [2020-10-27 15:01:32,279 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 15:01:32,280 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/bitvector/s3_srvr_3a.BV.c.cil.c [2020-10-27 15:01:32,301 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/587acbc90/c9e3289ff71c41cf9132cea96eef5829/FLAG30df508da [2020-10-27 15:01:32,595 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/587acbc90/c9e3289ff71c41cf9132cea96eef5829 [2020-10-27 15:01:32,598 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 15:01:32,605 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 15:01:32,608 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 15:01:32,608 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 15:01:32,612 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 15:01:32,613 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:01:32" (1/1) ... [2020-10-27 15:01:32,616 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32f66b43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:01:32, skipping insertion in model container [2020-10-27 15:01:32,617 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:01:32" (1/1) ... [2020-10-27 15:01:32,625 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 15:01:32,665 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 15:01:32,907 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 15:01:32,917 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 15:01:33,016 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 15:01:33,052 INFO L208 MainTranslator]: Completed translation [2020-10-27 15:01:33,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:01:33 WrapperNode [2020-10-27 15:01:33,053 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 15:01:33,055 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 15:01:33,055 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 15:01:33,055 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 15:01:33,067 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:01:33" (1/1) ... [2020-10-27 15:01:33,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:01:33" (1/1) ... [2020-10-27 15:01:33,079 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:01:33" (1/1) ... [2020-10-27 15:01:33,079 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:01:33" (1/1) ... [2020-10-27 15:01:33,095 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:01:33" (1/1) ... [2020-10-27 15:01:33,107 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:01:33" (1/1) ... [2020-10-27 15:01:33,111 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:01:33" (1/1) ... [2020-10-27 15:01:33,116 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 15:01:33,117 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 15:01:33,117 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 15:01:33,117 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 15:01:33,118 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:01:33" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 15:01:33,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 15:01:33,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 15:01:33,197 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 15:01:33,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2020-10-27 15:01:33,197 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 15:01:33,198 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 15:01:33,198 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 15:01:33,198 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 15:01:33,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 15:01:33,198 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-10-27 15:01:33,198 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 15:01:33,198 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-10-27 15:01:33,199 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2020-10-27 15:01:33,199 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 15:01:33,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 15:01:33,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 15:01:33,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 15:01:33,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 15:01:33,200 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 15:01:33,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 15:01:33,442 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-27 15:01:34,144 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2020-10-27 15:01:34,144 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2020-10-27 15:01:34,168 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 15:01:34,169 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-27 15:01:34,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:01:34 BoogieIcfgContainer [2020-10-27 15:01:34,171 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 15:01:34,173 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 15:01:34,173 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 15:01:34,177 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 15:01:34,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 03:01:32" (1/3) ... [2020-10-27 15:01:34,178 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eecf3e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:01:34, skipping insertion in model container [2020-10-27 15:01:34,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:01:33" (2/3) ... [2020-10-27 15:01:34,179 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eecf3e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:01:34, skipping insertion in model container [2020-10-27 15:01:34,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:01:34" (3/3) ... [2020-10-27 15:01:34,181 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_3a.BV.c.cil.c [2020-10-27 15:01:34,194 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 15:01:34,200 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 15:01:34,213 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 15:01:34,244 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 15:01:34,244 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 15:01:34,244 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 15:01:34,244 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 15:01:34,244 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 15:01:34,245 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 15:01:34,245 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 15:01:34,245 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 15:01:34,266 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states. [2020-10-27 15:01:34,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-27 15:01:34,276 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:01:34,277 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:01:34,278 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:01:34,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:01:34,284 INFO L82 PathProgramCache]: Analyzing trace with hash -30726417, now seen corresponding path program 1 times [2020-10-27 15:01:34,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:01:34,294 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [351560888] [2020-10-27 15:01:34,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:01:34,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:34,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:34,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:34,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:35,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:35,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-27 15:01:35,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 15:01:35,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 727 [2020-10-27 15:01:35,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:35,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:01:35,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-27 15:01:35,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-27 15:01:35,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 15:01:35,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:01:35,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:35,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:35,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:35,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:01:35,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:35,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 15:01:35,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:35,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:01:35,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:01:35,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:01:35,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:35,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 15:01:35,339 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [351560888] [2020-10-27 15:01:35,340 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:01:35,341 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 15:01:35,341 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528260618] [2020-10-27 15:01:35,346 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 15:01:35,346 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:01:35,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 15:01:35,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 15:01:35,363 INFO L87 Difference]: Start difference. First operand 151 states. Second operand 4 states. [2020-10-27 15:01:35,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:01:35,975 INFO L93 Difference]: Finished difference Result 411 states and 700 transitions. [2020-10-27 15:01:35,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 15:01:35,977 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2020-10-27 15:01:35,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:01:35,989 INFO L225 Difference]: With dead ends: 411 [2020-10-27 15:01:35,989 INFO L226 Difference]: Without dead ends: 245 [2020-10-27 15:01:35,994 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:01:36,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2020-10-27 15:01:36,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 245. [2020-10-27 15:01:36,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2020-10-27 15:01:36,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 374 transitions. [2020-10-27 15:01:36,066 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 374 transitions. Word has length 51 [2020-10-27 15:01:36,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:01:36,067 INFO L481 AbstractCegarLoop]: Abstraction has 245 states and 374 transitions. [2020-10-27 15:01:36,067 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 15:01:36,068 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 374 transitions. [2020-10-27 15:01:36,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-27 15:01:36,072 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:01:36,072 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:01:36,073 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 15:01:36,073 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:01:36,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:01:36,074 INFO L82 PathProgramCache]: Analyzing trace with hash -53570128, now seen corresponding path program 1 times [2020-10-27 15:01:36,074 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:01:36,074 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [459061933] [2020-10-27 15:01:36,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:01:36,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:36,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:36,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:36,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:36,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:36,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-27 15:01:36,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 15:01:36,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 298 [2020-10-27 15:01:36,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:36,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:01:36,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-27 15:01:36,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-27 15:01:36,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:36,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:01:36,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:36,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:36,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:36,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:01:36,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:36,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 15:01:36,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:36,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:01:36,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:01:36,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:01:36,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 15:01:36,518 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 15:01:36,519 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [459061933] [2020-10-27 15:01:36,519 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:01:36,519 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 15:01:36,519 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531977166] [2020-10-27 15:01:36,521 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 15:01:36,521 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:01:36,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 15:01:36,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 15:01:36,523 INFO L87 Difference]: Start difference. First operand 245 states and 374 transitions. Second operand 4 states. [2020-10-27 15:01:37,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:01:37,096 INFO L93 Difference]: Finished difference Result 590 states and 929 transitions. [2020-10-27 15:01:37,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 15:01:37,097 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 67 [2020-10-27 15:01:37,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:01:37,102 INFO L225 Difference]: With dead ends: 590 [2020-10-27 15:01:37,106 INFO L226 Difference]: Without dead ends: 335 [2020-10-27 15:01:37,109 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:01:37,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2020-10-27 15:01:37,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 325. [2020-10-27 15:01:37,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 325 states. [2020-10-27 15:01:37,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 486 transitions. [2020-10-27 15:01:37,166 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 486 transitions. Word has length 67 [2020-10-27 15:01:37,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:01:37,167 INFO L481 AbstractCegarLoop]: Abstraction has 325 states and 486 transitions. [2020-10-27 15:01:37,167 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 15:01:37,167 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 486 transitions. [2020-10-27 15:01:37,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-27 15:01:37,179 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:01:37,179 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:01:37,179 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 15:01:37,180 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:01:37,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:01:37,181 INFO L82 PathProgramCache]: Analyzing trace with hash -261072200, now seen corresponding path program 1 times [2020-10-27 15:01:37,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:01:37,181 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2096373447] [2020-10-27 15:01:37,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:01:37,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:37,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:37,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:37,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:37,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:37,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-27 15:01:37,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 15:01:37,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 221 [2020-10-27 15:01:37,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:37,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:01:37,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-10-27 15:01:37,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-27 15:01:37,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:37,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:01:37,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:37,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:37,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:37,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:01:37,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:37,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 15:01:37,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:37,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:01:37,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:01:37,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:01:37,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:37,521 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-27 15:01:37,521 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2096373447] [2020-10-27 15:01:37,522 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:01:37,522 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 15:01:37,522 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620874816] [2020-10-27 15:01:37,523 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 15:01:37,523 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:01:37,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 15:01:37,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 15:01:37,524 INFO L87 Difference]: Start difference. First operand 325 states and 486 transitions. Second operand 4 states. [2020-10-27 15:01:38,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:01:38,117 INFO L93 Difference]: Finished difference Result 726 states and 1117 transitions. [2020-10-27 15:01:38,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 15:01:38,118 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 88 [2020-10-27 15:01:38,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:01:38,121 INFO L225 Difference]: With dead ends: 726 [2020-10-27 15:01:38,121 INFO L226 Difference]: Without dead ends: 415 [2020-10-27 15:01:38,123 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:01:38,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2020-10-27 15:01:38,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 407. [2020-10-27 15:01:38,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 407 states. [2020-10-27 15:01:38,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 578 transitions. [2020-10-27 15:01:38,145 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 578 transitions. Word has length 88 [2020-10-27 15:01:38,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:01:38,146 INFO L481 AbstractCegarLoop]: Abstraction has 407 states and 578 transitions. [2020-10-27 15:01:38,146 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 15:01:38,146 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 578 transitions. [2020-10-27 15:01:38,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-27 15:01:38,148 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:01:38,148 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:01:38,148 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 15:01:38,149 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:01:38,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:01:38,149 INFO L82 PathProgramCache]: Analyzing trace with hash -1158465478, now seen corresponding path program 1 times [2020-10-27 15:01:38,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:01:38,150 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [656232407] [2020-10-27 15:01:38,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:01:38,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:38,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:38,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:38,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:38,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:38,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-27 15:01:38,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 15:01:38,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 233 [2020-10-27 15:01:38,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:38,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:01:38,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-10-27 15:01:38,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-27 15:01:38,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:38,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:01:38,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:38,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:38,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:38,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:01:38,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:38,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 15:01:38,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:38,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:01:38,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:01:38,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:01:38,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:38,495 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-27 15:01:38,508 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [656232407] [2020-10-27 15:01:38,509 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:01:38,509 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 15:01:38,509 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778071539] [2020-10-27 15:01:38,510 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 15:01:38,510 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:01:38,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 15:01:38,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 15:01:38,511 INFO L87 Difference]: Start difference. First operand 407 states and 578 transitions. Second operand 4 states. [2020-10-27 15:01:39,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:01:39,027 INFO L93 Difference]: Finished difference Result 852 states and 1230 transitions. [2020-10-27 15:01:39,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 15:01:39,028 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 88 [2020-10-27 15:01:39,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:01:39,033 INFO L225 Difference]: With dead ends: 852 [2020-10-27 15:01:39,033 INFO L226 Difference]: Without dead ends: 459 [2020-10-27 15:01:39,034 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:01:39,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2020-10-27 15:01:39,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 453. [2020-10-27 15:01:39,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 453 states. [2020-10-27 15:01:39,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 634 transitions. [2020-10-27 15:01:39,068 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 634 transitions. Word has length 88 [2020-10-27 15:01:39,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:01:39,068 INFO L481 AbstractCegarLoop]: Abstraction has 453 states and 634 transitions. [2020-10-27 15:01:39,068 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 15:01:39,068 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 634 transitions. [2020-10-27 15:01:39,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-27 15:01:39,071 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:01:39,071 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:01:39,071 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 15:01:39,071 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:01:39,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:01:39,072 INFO L82 PathProgramCache]: Analyzing trace with hash -1190309259, now seen corresponding path program 1 times [2020-10-27 15:01:39,073 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:01:39,073 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1728484597] [2020-10-27 15:01:39,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:01:39,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:39,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:39,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:39,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:39,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:39,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-27 15:01:39,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 15:01:39,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 243 [2020-10-27 15:01:39,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:39,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:01:39,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-27 15:01:39,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-27 15:01:39,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:39,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:01:39,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:39,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:39,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:39,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:01:39,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:39,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 15:01:39,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:39,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:01:39,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:01:39,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:01:39,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:39,447 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 15:01:39,447 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1728484597] [2020-10-27 15:01:39,448 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:01:39,449 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 15:01:39,449 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549824970] [2020-10-27 15:01:39,450 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 15:01:39,451 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:01:39,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 15:01:39,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 15:01:39,461 INFO L87 Difference]: Start difference. First operand 453 states and 634 transitions. Second operand 4 states. [2020-10-27 15:01:40,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:01:40,047 INFO L93 Difference]: Finished difference Result 1042 states and 1504 transitions. [2020-10-27 15:01:40,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 15:01:40,048 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 95 [2020-10-27 15:01:40,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:01:40,054 INFO L225 Difference]: With dead ends: 1042 [2020-10-27 15:01:40,054 INFO L226 Difference]: Without dead ends: 583 [2020-10-27 15:01:40,056 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:01:40,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2020-10-27 15:01:40,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 557. [2020-10-27 15:01:40,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 557 states. [2020-10-27 15:01:40,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 784 transitions. [2020-10-27 15:01:40,082 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 784 transitions. Word has length 95 [2020-10-27 15:01:40,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:01:40,084 INFO L481 AbstractCegarLoop]: Abstraction has 557 states and 784 transitions. [2020-10-27 15:01:40,084 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 15:01:40,084 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 784 transitions. [2020-10-27 15:01:40,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-27 15:01:40,086 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:01:40,086 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:01:40,086 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 15:01:40,087 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:01:40,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:01:40,088 INFO L82 PathProgramCache]: Analyzing trace with hash -689399732, now seen corresponding path program 1 times [2020-10-27 15:01:40,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:01:40,088 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [962416842] [2020-10-27 15:01:40,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:01:40,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:40,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:40,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:40,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:40,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:40,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-27 15:01:40,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 15:01:40,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 239 [2020-10-27 15:01:40,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:40,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:01:40,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-27 15:01:40,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-27 15:01:40,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:40,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:01:40,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:40,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:40,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:40,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:01:40,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:40,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 15:01:40,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:40,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:01:40,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:01:40,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:01:40,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 15:01:40,442 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-10-27 15:01:40,442 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [962416842] [2020-10-27 15:01:40,443 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:01:40,443 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 15:01:40,446 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213789078] [2020-10-27 15:01:40,446 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 15:01:40,446 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:01:40,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 15:01:40,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 15:01:40,449 INFO L87 Difference]: Start difference. First operand 557 states and 784 transitions. Second operand 4 states. [2020-10-27 15:01:41,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:01:41,025 INFO L93 Difference]: Finished difference Result 1212 states and 1736 transitions. [2020-10-27 15:01:41,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 15:01:41,026 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 108 [2020-10-27 15:01:41,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:01:41,032 INFO L225 Difference]: With dead ends: 1212 [2020-10-27 15:01:41,033 INFO L226 Difference]: Without dead ends: 633 [2020-10-27 15:01:41,051 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:01:41,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2020-10-27 15:01:41,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 607. [2020-10-27 15:01:41,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 607 states. [2020-10-27 15:01:41,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 852 transitions. [2020-10-27 15:01:41,094 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 852 transitions. Word has length 108 [2020-10-27 15:01:41,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:01:41,095 INFO L481 AbstractCegarLoop]: Abstraction has 607 states and 852 transitions. [2020-10-27 15:01:41,095 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 15:01:41,095 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 852 transitions. [2020-10-27 15:01:41,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-10-27 15:01:41,097 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:01:41,098 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:01:41,098 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 15:01:41,098 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:01:41,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:01:41,098 INFO L82 PathProgramCache]: Analyzing trace with hash -1493392930, now seen corresponding path program 1 times [2020-10-27 15:01:41,099 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:01:41,099 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1890377432] [2020-10-27 15:01:41,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:01:41,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:41,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:41,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:41,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-27 15:01:41,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:41,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-27 15:01:41,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:41,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:01:41,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-27 15:01:41,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-27 15:01:41,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 15:01:41,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:01:41,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:41,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:41,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:01:41,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:01:41,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:01:41,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 15:01:41,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:01:41,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:01:41,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:01:41,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:01:41,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:01:41,334 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-10-27 15:01:41,334 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1890377432] [2020-10-27 15:01:41,334 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:01:41,335 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 15:01:41,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373481290] [2020-10-27 15:01:41,336 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 15:01:41,336 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:01:41,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 15:01:41,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 15:01:41,338 INFO L87 Difference]: Start difference. First operand 607 states and 852 transitions. Second operand 4 states. [2020-10-27 15:01:41,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:01:41,802 INFO L93 Difference]: Finished difference Result 905 states and 1272 transitions. [2020-10-27 15:01:41,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-27 15:01:41,802 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 128 [2020-10-27 15:01:41,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:01:41,822 INFO L225 Difference]: With dead ends: 905 [2020-10-27 15:01:41,822 INFO L226 Difference]: Without dead ends: 902 [2020-10-27 15:01:41,823 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:01:41,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2020-10-27 15:01:41,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 902. [2020-10-27 15:01:41,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 902 states. [2020-10-27 15:01:41,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 902 states to 902 states and 1269 transitions. [2020-10-27 15:01:41,860 INFO L78 Accepts]: Start accepts. Automaton has 902 states and 1269 transitions. Word has length 128 [2020-10-27 15:01:41,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:01:41,860 INFO L481 AbstractCegarLoop]: Abstraction has 902 states and 1269 transitions. [2020-10-27 15:01:41,860 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 15:01:41,861 INFO L276 IsEmpty]: Start isEmpty. Operand 902 states and 1269 transitions. [2020-10-27 15:01:41,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-10-27 15:01:41,864 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:01:41,865 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:01:41,865 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 15:01:41,865 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:01:41,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:01:41,866 INFO L82 PathProgramCache]: Analyzing trace with hash -323951628, now seen corresponding path program 1 times [2020-10-27 15:01:41,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:01:41,866 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1441973879] [2020-10-27 15:01:41,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:01:41,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:01:41,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:01:41,965 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1441973879] [2020-10-27 15:01:41,966 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2020-10-27 15:01:41,966 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:01:41,966 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-10-27 15:01:41,967 ERROR L205 FreeRefinementEngine]: Strategy FIXED_PREFERENCES failed to provide any proof altough trace is infeasible [2020-10-27 15:01:41,967 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 15:01:41,973 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 15:01:42,035 WARN L238 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-27 15:01:42,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 03:01:42 BoogieIcfgContainer [2020-10-27 15:01:42,036 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 15:01:42,038 INFO L168 Benchmark]: Toolchain (without parser) took 9437.42 ms. Allocated memory was 125.8 MB in the beginning and 231.7 MB in the end (delta: 105.9 MB). Free memory was 100.7 MB in the beginning and 179.8 MB in the end (delta: -79.0 MB). Peak memory consumption was 27.6 MB. Max. memory is 8.0 GB. [2020-10-27 15:01:42,039 INFO L168 Benchmark]: CDTParser took 1.39 ms. Allocated memory is still 125.8 MB. Free memory is still 86.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 15:01:42,040 INFO L168 Benchmark]: CACSL2BoogieTranslator took 445.26 ms. Allocated memory is still 125.8 MB. Free memory was 100.1 MB in the beginning and 85.2 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2020-10-27 15:01:42,041 INFO L168 Benchmark]: Boogie Preprocessor took 61.35 ms. Allocated memory is still 125.8 MB. Free memory was 85.2 MB in the beginning and 82.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-27 15:01:42,041 INFO L168 Benchmark]: RCFGBuilder took 1054.03 ms. Allocated memory was 125.8 MB in the beginning and 160.4 MB in the end (delta: 34.6 MB). Free memory was 82.6 MB in the beginning and 101.7 MB in the end (delta: -19.1 MB). Peak memory consumption was 17.6 MB. Max. memory is 8.0 GB. [2020-10-27 15:01:42,042 INFO L168 Benchmark]: TraceAbstraction took 7862.96 ms. Allocated memory was 160.4 MB in the beginning and 231.7 MB in the end (delta: 71.3 MB). Free memory was 101.2 MB in the beginning and 179.8 MB in the end (delta: -78.5 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 15:01:42,045 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.39 ms. Allocated memory is still 125.8 MB. Free memory is still 86.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 445.26 ms. Allocated memory is still 125.8 MB. Free memory was 100.1 MB in the beginning and 85.2 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 61.35 ms. Allocated memory is still 125.8 MB. Free memory was 85.2 MB in the beginning and 82.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1054.03 ms. Allocated memory was 125.8 MB in the beginning and 160.4 MB in the end (delta: 34.6 MB). Free memory was 82.6 MB in the beginning and 101.7 MB in the end (delta: -19.1 MB). Peak memory consumption was 17.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 7862.96 ms. Allocated memory was 160.4 MB in the beginning and 231.7 MB in the end (delta: 71.3 MB). Free memory was 101.2 MB in the beginning and 179.8 MB in the end (delta: -78.5 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint, overapproximation of bitwiseAnd at line 85. Possible FailurePath: [L678] int s ; [L679] int tmp ; [L683] s = 8464 [L684] CALL ssl3_accept(s) [L12] int s__info_callback = __VERIFIER_nondet_int(); [L13] unsigned int s__in_handshake = __VERIFIER_nondet_uint(); [L14] int s__state ; [L15] int s__new_session ; [L16] int s__server ; [L17] int s__version = __VERIFIER_nondet_int(); [L18] int s__type ; [L19] int s__init_num ; [L20] int s__hit = __VERIFIER_nondet_int(); [L21] int s__rwstate ; [L22] int s__init_buf___0 ; [L23] int s__debug = __VERIFIER_nondet_int(); [L24] int s__shutdown ; [L25] int s__cert = __VERIFIER_nondet_int(); [L26] int s__options = __VERIFIER_nondet_int(); [L27] int s__verify_mode = __VERIFIER_nondet_int(); [L28] int s__session__peer = __VERIFIER_nondet_int(); [L29] int s__cert__pkeys__AT0__privatekey = __VERIFIER_nondet_int(); [L30] int s__ctx__info_callback = __VERIFIER_nondet_int(); [L31] int s__ctx__stats__sess_accept_renegotiate ; [L32] int s__ctx__stats__sess_accept ; [L33] unsigned int s__ctx__stats__sess_accept_good = __VERIFIER_nondet_uint(); [L34] int s__s3__tmp__cert_request ; [L35] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int(); [L36] int s__s3__tmp__use_rsa_tmp ; [L37] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int(); [L38] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int(); [L39] int s__s3__tmp__next_state___0 ; [L40] int s__s3__tmp__new_cipher__algo_strength = __VERIFIER_nondet_int(); [L41] int s__session__cipher ; [L42] int buf ; [L43] unsigned long l ; [L44] unsigned long Time ; [L45] unsigned long tmp ; [L46] int cb ; [L47] long num1 ; [L48] int ret ; [L49] int new_state ; [L50] int state ; [L51] int skip ; [L52] int got_new_session ; [L53] int tmp___1 = __VERIFIER_nondet_int(); [L54] int tmp___2 = __VERIFIER_nondet_int(); [L55] int tmp___3 = __VERIFIER_nondet_int(); [L56] int tmp___4 = __VERIFIER_nondet_int(); [L57] int tmp___5 = __VERIFIER_nondet_int(); [L58] int tmp___6 = __VERIFIER_nondet_int(); [L59] int tmp___7 ; [L60] long tmp___8 = __VERIFIER_nondet_long(); [L61] int tmp___9 = __VERIFIER_nondet_int(); [L62] int tmp___10 = __VERIFIER_nondet_int(); [L63] int blastFlag ; [L64] int __retres67 ; [L67] s__state = initial_state [L68] blastFlag = 0 [L69] tmp = __VERIFIER_nondet_int() [L70] Time = tmp [L71] cb = 0 [L72] ret = -1 [L73] skip = 0 [L74] got_new_session = 0 [L75] COND TRUE s__info_callback != 0 [L76] cb = s__info_callback [L84] s__in_handshake = s__in_handshake + 1 [L85] COND FALSE !(tmp___1 & 12288) [L94] COND FALSE !(s__cert == 0) [L101] COND TRUE 1 [L103] state = s__state [L104] COND FALSE !(s__state == 12292) [L107] COND FALSE !(s__state == 16384) [L110] COND FALSE !(s__state == 8192) [L113] COND FALSE !(s__state == 24576) [L116] COND FALSE !(s__state == 8195) [L119] COND FALSE !(s__state == 8480) [L122] COND FALSE !(s__state == 8481) [L125] COND FALSE !(s__state == 8482) [L128] COND TRUE s__state == 8464 [L289] s__shutdown = 0 [L290] ret = __VERIFIER_nondet_int() [L291] COND TRUE blastFlag == 0 [L292] blastFlag = 1 [L296] COND FALSE !(ret <= 0) [L301] got_new_session = 1 [L302] s__state = 8496 [L303] s__init_num = 0 [L627] COND FALSE !(! s__s3__tmp__reuse_message) [L656] skip = 0 [L101] COND TRUE 1 [L103] state = s__state [L104] COND FALSE !(s__state == 12292) [L107] COND FALSE !(s__state == 16384) [L110] COND FALSE !(s__state == 8192) [L113] COND FALSE !(s__state == 24576) [L116] COND FALSE !(s__state == 8195) [L119] COND FALSE !(s__state == 8480) [L122] COND FALSE !(s__state == 8481) [L125] COND FALSE !(s__state == 8482) [L128] COND FALSE !(s__state == 8464) [L131] COND FALSE !(s__state == 8465) [L134] COND FALSE !(s__state == 8466) [L137] COND TRUE s__state == 8496 [L307] ret = __VERIFIER_nondet_int() [L308] COND TRUE blastFlag == 1 [L309] blastFlag = 2 [L313] COND FALSE !(ret <= 0) [L318] COND TRUE \read(s__hit) [L319] s__state = 8656 [L323] s__init_num = 0 [L627] COND FALSE !(! s__s3__tmp__reuse_message) [L656] skip = 0 [L101] COND TRUE 1 [L103] state = s__state [L104] COND FALSE !(s__state == 12292) [L107] COND FALSE !(s__state == 16384) [L110] COND FALSE !(s__state == 8192) [L113] COND FALSE !(s__state == 24576) [L116] COND FALSE !(s__state == 8195) [L119] COND FALSE !(s__state == 8480) [L122] COND FALSE !(s__state == 8481) [L125] COND FALSE !(s__state == 8482) [L128] COND FALSE !(s__state == 8464) [L131] COND FALSE !(s__state == 8465) [L134] COND FALSE !(s__state == 8466) [L137] COND FALSE !(s__state == 8496) [L140] COND FALSE !(s__state == 8497) [L143] COND FALSE !(s__state == 8512) [L146] COND FALSE !(s__state == 8513) [L149] COND FALSE !(s__state == 8528) [L152] COND FALSE !(s__state == 8529) [L155] COND FALSE !(s__state == 8544) [L158] COND FALSE !(s__state == 8545) [L161] COND FALSE !(s__state == 8560) [L164] COND FALSE !(s__state == 8561) [L167] COND FALSE !(s__state == 8448) [L170] COND FALSE !(s__state == 8576) [L173] COND FALSE !(s__state == 8577) [L176] COND FALSE !(s__state == 8592) [L179] COND FALSE !(s__state == 8593) [L182] COND FALSE !(s__state == 8608) [L185] COND FALSE !(s__state == 8609) [L188] COND FALSE !(s__state == 8640) [L191] COND FALSE !(s__state == 8641) [L194] COND TRUE s__state == 8656 [L521] s__session__cipher = s__s3__tmp__new_cipher [L522] COND FALSE !(! tmp___9) [L528] ret = __VERIFIER_nondet_int() [L529] COND TRUE blastFlag == 2 [L530] blastFlag = 3 [L534] COND FALSE !(ret <= 0) [L539] s__state = 8672 [L540] s__init_num = 0 [L541] COND FALSE !(! tmp___10) [L627] COND FALSE !(! s__s3__tmp__reuse_message) [L656] skip = 0 [L101] COND TRUE 1 [L103] state = s__state [L104] COND FALSE !(s__state == 12292) [L107] COND FALSE !(s__state == 16384) [L110] COND FALSE !(s__state == 8192) [L113] COND FALSE !(s__state == 24576) [L116] COND FALSE !(s__state == 8195) [L119] COND FALSE !(s__state == 8480) [L122] COND FALSE !(s__state == 8481) [L125] COND FALSE !(s__state == 8482) [L128] COND FALSE !(s__state == 8464) [L131] COND FALSE !(s__state == 8465) [L134] COND FALSE !(s__state == 8466) [L137] COND FALSE !(s__state == 8496) [L140] COND FALSE !(s__state == 8497) [L143] COND FALSE !(s__state == 8512) [L146] COND FALSE !(s__state == 8513) [L149] COND FALSE !(s__state == 8528) [L152] COND FALSE !(s__state == 8529) [L155] COND FALSE !(s__state == 8544) [L158] COND FALSE !(s__state == 8545) [L161] COND FALSE !(s__state == 8560) [L164] COND FALSE !(s__state == 8561) [L167] COND FALSE !(s__state == 8448) [L170] COND FALSE !(s__state == 8576) [L173] COND FALSE !(s__state == 8577) [L176] COND FALSE !(s__state == 8592) [L179] COND FALSE !(s__state == 8593) [L182] COND FALSE !(s__state == 8608) [L185] COND FALSE !(s__state == 8609) [L188] COND TRUE s__state == 8640 [L501] ret = __VERIFIER_nondet_int() [L502] COND TRUE blastFlag == 3 [L503] blastFlag = blastFlag + s__state / s__s3__tmp__next_state___0 [L507] COND FALSE !(ret <= 0) [L512] COND TRUE \read(s__hit) [L513] s__state = 3 [L517] s__init_num = 0 [L627] COND FALSE !(! s__s3__tmp__reuse_message) [L656] skip = 0 [L101] COND TRUE 1 [L103] state = s__state [L104] COND FALSE !(s__state == 12292) [L107] COND FALSE !(s__state == 16384) [L110] COND FALSE !(s__state == 8192) [L113] COND FALSE !(s__state == 24576) [L116] COND FALSE !(s__state == 8195) [L119] COND FALSE !(s__state == 8480) [L122] COND FALSE !(s__state == 8481) [L125] COND FALSE !(s__state == 8482) [L128] COND FALSE !(s__state == 8464) [L131] COND FALSE !(s__state == 8465) [L134] COND FALSE !(s__state == 8466) [L137] COND FALSE !(s__state == 8496) [L140] COND FALSE !(s__state == 8497) [L143] COND FALSE !(s__state == 8512) [L146] COND FALSE !(s__state == 8513) [L149] COND FALSE !(s__state == 8528) [L152] COND FALSE !(s__state == 8529) [L155] COND FALSE !(s__state == 8544) [L158] COND FALSE !(s__state == 8545) [L161] COND FALSE !(s__state == 8560) [L164] COND FALSE !(s__state == 8561) [L167] COND TRUE s__state == 8448 [L441] COND FALSE !(num1 > 0L) [L454] s__state = s__s3__tmp__next_state___0 [L627] COND FALSE !(! s__s3__tmp__reuse_message) [L656] skip = 0 [L101] COND TRUE 1 [L103] state = s__state [L104] COND FALSE !(s__state == 12292) [L107] COND FALSE !(s__state == 16384) [L110] COND FALSE !(s__state == 8192) [L113] COND FALSE !(s__state == 24576) [L116] COND FALSE !(s__state == 8195) [L119] COND FALSE !(s__state == 8480) [L122] COND FALSE !(s__state == 8481) [L125] COND FALSE !(s__state == 8482) [L128] COND FALSE !(s__state == 8464) [L131] COND FALSE !(s__state == 8465) [L134] COND FALSE !(s__state == 8466) [L137] COND FALSE !(s__state == 8496) [L140] COND FALSE !(s__state == 8497) [L143] COND FALSE !(s__state == 8512) [L146] COND FALSE !(s__state == 8513) [L149] COND FALSE !(s__state == 8528) [L152] COND FALSE !(s__state == 8529) [L155] COND FALSE !(s__state == 8544) [L158] COND FALSE !(s__state == 8545) [L161] COND FALSE !(s__state == 8560) [L164] COND FALSE !(s__state == 8561) [L167] COND FALSE !(s__state == 8448) [L170] COND FALSE !(s__state == 8576) [L173] COND FALSE !(s__state == 8577) [L176] COND FALSE !(s__state == 8592) [L179] COND FALSE !(s__state == 8593) [L182] COND FALSE !(s__state == 8608) [L185] COND FALSE !(s__state == 8609) [L188] COND FALSE !(s__state == 8640) [L191] COND FALSE !(s__state == 8641) [L194] COND FALSE !(s__state == 8656) [L197] COND FALSE !(s__state == 8657) [L200] COND TRUE s__state == 8672 [L550] ret = __VERIFIER_nondet_int() [L551] COND TRUE blastFlag == 4 [L669] CALL reach_error() [L3] __assert_fail("0", "s3_srvr_3a.BV.c.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 151 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 7.7s, OverallIterations: 8, TraceHistogramMax: 6, AutomataDifference: 4.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1469 SDtfs, 2374 SDslu, 59 SDs, 0 SdLazy, 1442 SolverSat, 220 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=902occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 76 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 819 NumberOfCodeBlocks, 819 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 618 ConstructedInterpolants, 0 QuantifiedInterpolants, 118722 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 318/318 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...